81535270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 162201600

約数和(自身を除く): 80666330

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 109, 127, 155, 190, 218, 254, 310, 545, 589, 635, 1090, 1178, 1270, 2071, 2413, 2945, 3379, 3937, 4142, 4826, 5890, 6758, 7874, 10355, 12065, 13843, 16895, 19685, 20710, 24130, 27686, 33790, 39370, 64201, 69215, 74803, 128402, 138430, 149606, 263017, 321005, 374015, 429133, 526034, 642010, 748030, 858266, 1315085, 2145665, 2630170, 4291330, 8153527, 16307054, 40767635, 81535270]

約数ペア:

[(1, 81535270), (2, 40767635), (5, 16307054), (10, 8153527), (19, 4291330), (31, 2630170), (38, 2145665), (62, 1315085), (95, 858266), (109, 748030), (127, 642010), (155, 526034), (190, 429133), (218, 374015), (254, 321005), (310, 263017), (545, 149606), (589, 138430), (635, 128402), (1090, 74803), (1178, 69215), (1270, 64201), (2071, 39370), (2413, 33790), (2945, 27686), (3379, 24130), (3937, 20710), (4142, 19685), (4826, 16895), (5890, 13843), (6758, 12065), (7874, 10355)]